/******************************************************************************
 * Copyright (C) Ultraleap, Inc. 2011-2021.                                   *
 *                                                                            *
 * Use subject to the terms of the Apache License 2.0 available at            *
 * http://www.apache.org/licenses/LICENSE-2.0, or another agreement           *
 * between Ultraleap and you, your company or other organization.             *
 ******************************************************************************/

using UnityEditor;
using UnityEngine;

namespace Leap.Unity
{

    [CustomEditor(typeof(Comment))]
    public class CommentEditor : CustomEditorBase<Comment>
    {

        private SerializedProperty _isEditing;
        private GUIStyle _editStyle;
        private GUIStyle _displayStyle;

        protected override void OnEnable()
        {
            base.OnEnable();

            _isEditing = serializedObject.FindProperty("_isEditing");

            dontShowScriptField();

            specifyCustomDrawer("_comment", drawComment);
        }

        private void drawComment(SerializedProperty commentProp)
        {
            string text = commentProp.stringValue;

            if (_editStyle == null)
            {
                _editStyle = new GUIStyle(EditorStyles.textArea);
                _editStyle.wordWrap = true;
            }

            if (_displayStyle == null)
            {
                _displayStyle = new GUIStyle(EditorStyles.label);
                _displayStyle.wordWrap = true;
                _displayStyle.richText = true;
            }

            if (string.IsNullOrEmpty(text))
            {
                _isEditing.boolValue = true;
            }

            if (_isEditing.boolValue)
            {
                if (GUILayout.Button("Finish"))
                {
                    _isEditing.boolValue = false;
                }

                commentProp.stringValue = EditorGUILayout.TextArea(text, _editStyle);
            }
            else
            {
                EditorGUILayout.Space();
                var rect = GUILayoutUtility.GetRect(new GUIContent(text), _displayStyle);
                EditorGUI.SelectableLabel(rect, text, _displayStyle);
            }
        }

    }
}